1) superfinish hard turning
超精硬态切削
1.
The residual stress formed on the surface of rolling bearing in superfinish hard turning will influence the fatigue life of rolling contacting after stress decay.
超精硬态切削在滚动轴承表面形成的残余压应力 ,经工作应力衰减后才成为影响滚动接触疲劳寿命的应力状态。
3) hard turning
硬态切削
1.
The effect of cutting parameters on cutting forces during hard turning hardened bearing steel GCrl5 with PCBN tool was studied.
通过系统的切削试验,研究了PCBN刀具硬态切削淬硬GCr15轴承钢时切削用量对切削力的影响规律,结果表明:径向力最大,其次是主切削力和轴向力;硬态切削粗加工时的切削力大致为精加工时的3倍;硬态切削力与切削深度和进给量在一定范围内呈线性上升的关系,而与切削速度呈非线性关系。
2.
The experimental results show that the hard turning work-pieces have better wear property than the grinding ones when wearing at low relative sliding velocity, even under high load, but worse when at.
针对硬态切削过程中工件被加工表面出现白层 ,表层组织和硬度均发生变化的现象 ,用PCBN刀具硬态切削和传统磨削的GCr15工件的耐磨性进行了对比试验。
3.
An experiment was conducted to determine the effects of cutting parameters and tool geometry on the surface roughness in the finish hard turning of the typical hardened bearing steel GCr15.
运用反应曲面法(RSM)建立了硬态切削表面粗糙度预测模型,通过试验验证了预测模型的准确性。
4) Hard cutting
硬态切削
1.
Cooling and Lubrication Technology in Hard Cutting;
硬态切削中的冷却润滑技术
2.
The contents and achievements of the research on hard cutting mechanism at home and abroad are summarized.
对国内外硬态切削机理研究的内容和成果进行了综合评述 ,讨论了硬态切削的概念和特点、切削力、金属软化效应、刀具磨损机理、切屑形成机理、冷却方式以及已加工表面完整性 ,提出了硬态切削研究中的热点问题。
3.
Moreover,a three-dimension coupled thermo-mechanical finite element model of pre-stress hard cutting is established.
对轴承套圈的预应力硬态切削过程进行了模拟,获得了不同预应力条件下的切削力、切削温度和已加工表面残余应力的分布规律,并与实验数据进行了比较和分析。
5) ultrasonically hard turning
超声硬切削
1.
The difference of cutting force and temperature distribution both conventional turning and ultrasonically hard turning 45 hardened steel with PCBN are investigated.
Marc,基于热弹塑性有限元方法,并在一定的假设条件下,建立了普通硬切削和超声硬切削45淬火钢的二维热力耦合模型。
2.
Utilizing MSC(Marc finite element software),2-D orthogonal thermal-mechanical coupling models are established based on the features of ultrasonically hard turning(UHT) and conventional hard turning(CHT) with PCBN cutting tool.
Marc中,针对PCBN刀具超声硬切削和普通硬切削的特点,建立了二维正交热力耦合模型,对这两种状态下的切削温度进行分析比较,发现超声振动状态下的切削温度明显低于普通状态;并且切削温度随切削深度及切削速度的增加而升高。
6) ultra-precision turning
超精密切削
1.
Analysis on the Friction in Ultra-precision Turning Based on Finite Element Method;
基于有限元法分析超精密切削中的摩擦问题
2.
The crystallographic relations of machined crystal plane and slip plane involved in ultra-precision turning and the mechanics characteristic of single crystal silicon are studied.
分析了单晶硅超精密切削时被加工晶面和滑移面间的相对关系以及单晶硅的力学特性,基于单晶硅超精密切削加工脆塑转变机理,模拟了分别以单晶硅(111)(、110)(、100)晶面为被加工面时的表面质量的各向异性特性。
3.
The application of genetic algorithm for the surface roughness pred iction model in ultra-precision turning is proposed by a practical example Mathe matics model is introduced and optimal results are given.
提出将遗传算法(GA)用于超精密切削表面粗糙度预测模型的参数寻优,并给出了金刚石刀具超精密切削铝合金的表面粗糙度预测数学模型,进行了遗传算法(GA)和最小二乘法的比较,结果表明遗传算法较最小二乘法更适合于粗糙度预测模型的参数寻优。
补充资料:超精硬切削发展领域的变革
图1 Ultrasonic 20直线驱动机床可以扩展到多达5根轴,并将带来超精硬切削发展领域的变革。C轴的力矩电机和A轴无浮动的伺服传动电机可以产生5轴切削需要的精度和高效能。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条